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Premium Fasteners & Fixings
Engineered for Excellence

Qingdao Donsen International Trading Co., Ltd – ISO9001 & CE Certified Manufacturer of High-Quality Brass and Steel Fasteners Since 2015. Trusted by Global Clients.

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About Donsen Fasteners

Qingdao Donsen International Trading Co., Ltd is a leading manufacturer and supplier of high-quality fasteners based in Qingdao, China. Established in 2015 by a team of professionals with over a decade of industry experience, we specialize in brass and steel fasteners for construction, industrial, and OEM applications.

Our mission is to deliver durable, reliable, and precision-engineered fastening solutions that meet international standards. With CE, ISO9001, and ISO13485 certifications, we ensure every product undergoes rigorous quality control.

Over 3000 sqm Production Facility
Global Export Experience Since 2008
Intimate After-Sales Support
Donsen Fasteners Manufacturing

Why Choose Donsen?

We combine advanced manufacturing, strict quality control, and customer-first service to deliver fasteners you can trust.

3000+ sqm Facility

State-of-the-art production and warehousing space ensuring high-volume output and consistent supply.

ISO & CE Certified

Compliant with ISO9001, ISO13485, and CE standards for quality and safety assurance.

Global Export Expertise

Over 15 years of combined experience in international trade and logistics.

24-Hour Support

Responsive customer service and technical support available around the clock.

Our Premium Products

Explore our wide range of high-performance fasteners and fixings.

Brass Full Hexagon Nuts

Brass Full Hexagon Nuts

Corrosion-resistant, high-strength brass nuts ideal for marine and industrial applications.

Material: Brass | Standard: DIN934
Wedge Drop-in Anchors

Wedge (Drop-in) Anchors - Type H

Heavy-duty expansion anchors for concrete, ideal for structural installations.

Material: Carbon Steel | Finish: Zinc
Hexagon Socket Steel Studs

Hexagon Socket Steel Studs

Precision-threaded studs with hex socket drive for secure fastening.

Finish: Zinc & Yellow | Grade: 8.8
Brass Bolts

Brass Hexagon Head Bolts

Durable brass bolts with high tensile strength for electrical and decorative uses.

Standard: DIN931 | Material: Brass
Nylon Wall Plugs

Nylon Wall Plugs with Wings

Rimless design with wings for secure anchoring in drywall and masonry.

Material: Nylon | Size: M4-M10
Handle L&R Carbon Steel

Handle L&R Carbon Steel

Forged carbon steel handles for industrial equipment and machinery.

OEM Customizable | Hot Forged
Hexagon Weld Nuts

Hexagon Weld Nuts

Designed for permanent welding to metal surfaces, ensuring strong joints.

Material: Carbon Steel | Thread: M6-M20
Locking Cam Custom

Locking Cam (Custom)

Custom-designed locking cams for specialized industrial applications.

OEM/ODM Supported | Precision Forged
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2015
Founded
3000+
sqm Facility
15+
Years Experience
50+
Global Clients

Frequently Asked Questions

Get answers to common inquiries about our products and services.

What materials do you offer for fasteners?

We specialize in brass, carbon steel, and stainless steel fasteners. Custom materials available upon request.

Are your products certified?

Yes, we are CE, ISO9001, and ISO13485 certified, ensuring compliance with international quality standards.

Can you do OEM/ODM manufacturing?

Absolutely. We offer full OEM and ODM services with custom design, packaging, and branding support.

What is your lead time?

Typically 15-30 days depending on order size and customization. Sample orders ship within 7 days.

Get in Touch

Reach out for inquiries, quotes, or technical support.

Visit Us

No. 13-22 Jiushui Road, Licang District
Qingdao, Shandong Province, China

Call Us

+86 186 6979 4793

Visit Official Website
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